Studies on beta Haemolytic streptococci isolated in Delhi.
D001414:Bacitracin / Q000494:pharmacology*; D006801:Humans; D066298:In Vitro Techniques; D007194:India; D010406:Penicillins / Q000494:pharmacology*; D013290:Streptococcal Infections / Q000453:epidemiology*; D013297:Streptococcus pyogenes / Q000302:isolation & purification*
D010406:Penicillins; D001414:Bacitracin